High Performance, Multiple Resolution Modeling of Semi-Arid Hydrology at Regional Scales

0342526 Vivoni面对城市地区日益增长的需求、灌溉和环境问题，半干旱地区的水资源管理非常困难。在美国西南部，水资源供需之间的严重失衡正在引发多个水资源利益相关者之间的水资源冲突。NSF STC半干旱水文和河岸地区可持续性中心（SAHRA）是一个多机构的努力，以加速半干旱地区的科学知识和水资源管理的状态。鉴于气候变化，科学界迫切需要对区域性半干旱盆地的潜在水文应力进行预测。该提案的主要目标是为SAHRA提供执行高分辨率水文模拟的能力，该模拟采用高效的分布式模型，能够捕获流域特性和气象强迫的空间异质性。该项目的重点是地表径流耦合建模，以便：（a）在多个尺度上代表格兰德河地表-次表层过程的时空分布，（B）模拟气候和土地使用变化的影响。TIN为基础的实时综合流域模拟器是拟议的模型，以考虑空间变异性的流域径流过程。通过集成到一个高性能的计算环境中，所提出的模型将改善洛斯阿拉莫斯国家实验室精细分辨率模式中的地表水文。此外，与基于网格的模型相比，三角形不规则网络模型通过多分辨率、多尺度域表示可以节省计算量。除了与正在进行的SAHRA研究相结合外，还提出了多元化努力，以加强西班牙裔/拉丁裔本科生的参与半干旱研究，并促进当地高中、社区学院和大学的水文理解。本科生研究经验（REU）计划将涉及两名学生每年夏天在研究涉及收集，分析和水文数据的模型集成。一个巡回讲座系列（TLS）计划将带来的研究成果和推广活动的基础上SAHRA科学和技术，以西班牙语的观众在当地西班牙裔社区。这两项努力共同补充了科学提案，导致研究成果的迅速传播和长期关系的建立。最终，从耦合建模系统中获得的知识可以转移到主要是西班牙裔社区的当地管理机构，决策者和水利益相关者

0342526VivoniIn the face of increasing demands from urban areas, irrigation and environmental concerns, water management in semi-arid areas is difficult. In the Southwestern US, a critical unbalance between water supply and demand is prompting water conflicts between multiple water stakeholders. The NSF STC Center for the Sustainability of semi-Arid Hydrology and Riparian Areas (SAHRA) is a multi-institutional effort to accelerate the state of scientific knowledge and water management in semi-arid areas. In light of climate variations, the scientific community has an urgent need to deliver predictions of potential hydrologic stress in regional semi-arid basins. The primary goal of this proposal is to provide SAHRA the capability to perform fine-resolution hydrologic simulations with an efficient distributed model that captures spatial heterogeneities in basin properties and meteorological forcing. The project focuses on coupled rainfall-runoff modeling in order to: (a) represent the spatial-temporal distribution of surface-subsurface processes at multiple scales over the Rio Grande, and (b) simulate the effect of climate and land-use change. The TIN-based Real-time Integrated Basin Simulator is the proposed model to account for the spatial variability of the rainfall-runoff process. Through integration into a high performance computing environment, the proposed model will improve the surface hydrology in the Los Alamos National Laboratory fine-resolution model. In addition, the triangulated irregular network model will allow computational savings as compared to grid-based models through the multi-resolution, multi-scale domain representation.In addition to integrating with on-going SAHRA research, a diversity effort is proposed for enhancing the participation of Hispanic/Latino undergraduates in semi-arid research and promoting hydrologic understanding in local high schools, community colleges and universities. A Research Experience for Undergraduates (REU) program will involve two students each summer in research involved with the collection, analysis and model integration of hydrologic data. A Traveling Lecture Series (TLS) program will bring research results and outreach activities based on SAHRA science and technology to Spanish-speaking audiences in local Hispanic communities. Together, these two efforts complement the scientific proposal by leading to the rapid dissemination of research results and the establishment of long-term relationships. Ultimately, the knowledge gained from the coupled modeling system can be transferred to the local management agencies, decision makers and water stakeholder in the primarily Hispanic communities